Production of pseudovector ($J^{PC}=1^{++}$) heavy quarkonia by virtual $Z$ boson in $e^{+}{e}^{-}$ collisions

Abstract

It is shown that $BR({\chi }_{b1}(1P)\to Z\to e^{+}{e}^{-})\simeq 3.3\cdot 10^{-7}$, $BR({\chi }_{b1}(2P)\to Z\to e^{+}{e}^{-})\simeq 4.1\cdot 10^{-7}$ and $BR({\chi }_{c1}(1P)\to Z\to e^{+}{e}^{-})\simeq 10^{-8}$ that give a good chance to search for the direct production of pseudovector ${}^3{P}_1$ heavy quarkonia in $e^{+}{e}^{-}$ collisions ($e^{+}{e}^{-}\to Z{\to }^3{P}_1$) even at current facilities not to mention $b$ and $c-\tau$ factories.

arXiv comment9 pages, revtex

Cited by in corpus (2)

• First Observation of the Direct Production of the ${\chi }_{c1}$ in $e^{+}{e}^{-}$ Annihilation
• Electro-weak production of pseudovector C-even heavy quarkonia in electron-positron collisions on Belle II and BES III